1). This sketch paper has been toned specifically for use with light and dark media. 2). The pads contain 80 lb. (118 gsm) medium-surface sketch paper appropriate for graphite, chalk, charcoal, sketching stick, marker, china marker, colored pencil, pen and white gel pen. 3). The paper is 100% recycled and acid-free with kraft and bark fiber inclusions for visual interest. 4). Each pad contains 24 sheets.